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Circulating tumor cells (CTC) blood test
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Circulating tumor cells (CTC) blood test

Gleason 7 downgraded to 6 following RP in 2002, as prostate was very large, tumor smaller than estimated. No positive margins, surgeon reported fairly large negative margins remained. PSA undetectable for 2 years, gradually rising, now at .5. I also have Hepatitis C, was on transplant list, but as a result of rising PSA I have been removed from the list. My urologist says my prostate tissue could be causing the PSA rise but I could actually be cancer free. I am trying to get reinstated to the transplant list. Would a blood test for CTC definitively say if I have recurrent prostate cancer or not?
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Thank you for your question. CTC tests are for assessment of progression of metastatic disease, rather than the presence of metastatic disease. The cause of a PSA rise needs to be addressed prior to making an assessment on the progression of metastatic disease. Imaging studies, should be performed as well.

Kindest regards,

Ash K. Tewari, MD

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